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公开(公告)号：US20220274419A1
公开(公告)日：2022-09-01
申请号：US17638776
申请日：2020-08-28
Applicant: KYOCERA CORPORATION
Inventor： Daisuke HOZUMI , Hiroyuki SUGIMOTO
Abstract: A circulation device according to an aspect includes a storage unit for storing liquid and a liquid droplet discharge unit for discharging liquid, and controls circulation of liquid flowing through a channel communicating the storage unit and the liquid droplet discharge unit with each other. Such a circulation device includes a robotic portion, a first pressure portion, a second pressure portion, a first valve portion, and a second valve portion. The robotic portion is mounted with the liquid droplet discharge unit. The first pressure portion feeds the liquid stored in the storage unit to the liquid droplet discharge unit through a first channel communicating the storage unit and the liquid droplet discharge unit with each other. The second pressure portion feeds the liquid recovered in the liquid droplet discharge unit to the storage unit through a second channel communicating the storage unit and the liquid droplet discharge unit with each other. The first valve portion is interposed between the first pressure portion and the liquid droplet discharge unit. The second valve portion is interposed between the second pressure portion and the liquid droplet discharge unit.
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公开(公告)号：US20190232654A1
公开(公告)日：2019-08-01
申请号：US16334785
申请日：2017-09-20
Applicant: KYOCERA Corporation
Inventor： Daisuke HOZUMI
IPC: B41J2/14
Abstract: A liquid ejection head includes a plurality of pressurizing chambers connected to a plurality of ejection holes, a plurality of first individual flow paths connected to the plurality of pressurizing chambers, a plurality of second individual flow paths and a plurality of third individual flow paths, a first common flow path is connected in common to the plurality of first and second individual flow paths, and a second common flow path is connected in common to the plurality of third individual flow paths. The first and second individual flow paths are connected to the same pressurizing chamber, the first individual flow path is connected to the first common flow path on a side of an opening end portion, compared to the second individual flow path. The first individual flow path is located opposite to a side where the ejection hole is open outward, compared to the second individual flow path.
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公开(公告)号：US20170282556A1
公开(公告)日：2017-10-05
申请号：US15507467
申请日：2015-08-26
Applicant: KYOCERA Corporation
Inventor： Daisuke HOZUMI , Hiroyuki KAWAMURA , Naoki KOBAYASHI
CPC classification number: B41J2/14161 , B41J2/06 , B41J2/14209 , B41J2/1429 , B41J2/16511 , B41J2/16585 , B41J2/525 , B41J2002/14306 , B41J2002/14419 , B41J2002/14459 , B41J2002/14467 , B41J2002/16502 , B41J2002/16514 , B41J2202/12
Abstract: A liquid discharge head is configured to achieve decrease in temperature difference in the liquid discharge head, and includes a recording device including the liquid discharge head. The liquid discharge head includes a channel member having a plurality of discharge holes, a plurality of pressurization chambers, and a plurality of common channels, and a plurality of pressurizing parts. The plurality of common channels extends in a first direction and configures a common channel group aligned in a second direction crossing the first direction, the common channels are connected with the plurality of pressurization chambers disposed along the common channels among the plurality of pressurization chambers, and the channel member is disposed outside, in the second direction, with respect to the common channel group, and further includes a first end channel extending in the first direction, and the first end channel is lower in channel resistance than the common channels.
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公开(公告)号：US20250074069A1
公开(公告)日：2025-03-06
申请号：US18954539
申请日：2024-11-21
Applicant: KYOCERA CORPORATION
Inventor： Takashi MIYAHARA , Daisuke HOZUMI , Atsushi ISHIHARA
Abstract: A liquid ejecting device includes a flow path member, an actuator, a pump, and a controller. The flow path member includes a flow path configured to direct flow of a pseudoplastic liquid through the flow path member. The actuator is configured to cause droplets to be ejected. The pump is configured to cause the liquid to flow sequentially through a supply reservoir, a plurality of supply manifolds, a plurality of supply flow paths, and a plurality of pressure chambers. The controller is configured to adjust a flow rate of the liquid to a prescribed target flow rate. The flow path has a flow path shape in which an average viscosity of the liquid in the plurality of supply flow paths is less than or equal to half an average viscosity of the liquid in the plurality of supply manifolds when the flow rate is equal to the target flow rate.
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公开(公告)号：US20220379337A1
公开(公告)日：2022-12-01
申请号：US17638855
申请日：2020-07-31
Applicant: KYOCERA CORPORATION
Inventor： Daisuke HOZUMI , Ayumu MATSUMOTO
Abstract: A coating device coats a coating region of a to-be-coated object having a convex curved surface. A coating device includes a head, an arm, and a controller. The head includes a nozzle surface. The arm holds the head. The controller controls movement of the head via the arm. A controller moves a head in a first direction along an end portion of a coating region in a posture in which a gap between a nozzle surface located on an end portion side of the coating region and a to-be-coated object is smaller than a gap between the nozzle surface located on a center side of the coating region and the to-be-coated object.
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Patent Agency Ranking
公开(公告)号：US20220274420A1
公开(公告)日：2022-09-01
申请号：US17638781
申请日：2020-08-28
Applicant: KYOCERA CORPORATION
Inventor： Daisuke HOZUMI , Hiroyuki SUGIMOTO
Abstract: A circulation device includes first and second valves, first and second pressure measuring portions, a detection unit, and a controller. The first valve controls the flow rate of a liquid from a storage to a droplet discharge unit. The second valve controls the flow rate of the liquid from the droplet discharge unit to the storage. The first pressure measuring portion measures the fluid pressure of the liquid flowing between the first valve and the droplet discharge unit as a supply pressure. The second pressure measuring portion measures the fluid pressure of the liquid flowing between the second valve and the droplet discharge unit as a recovery pressure. The detection unit detects information related to the droplet discharge unit. The controller controls the first and second valves in accordance with the information detected by the detection unit and adjusts the supply pressure and the recovery pressure.
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公开(公告)号：US20250153484A1
公开(公告)日：2025-05-15
申请号：US18722592
申请日：2022-12-23
Applicant: KYOCERA CORPORATION
Inventor： Makoto TOGO , Daisuke HOZUMI
Abstract: A droplet discharge device includes a droplet discharge head, a supply unit, and a controller. The droplet discharge head discharges droplets of a coloring liquid. The supply unit supplies the coloring liquid to the droplet discharge head. The controller controls each unit. During at least a part of a maintenance period after a discharge period in which droplets of the coloring liquid are discharged from the droplet discharge head, the controller controls the supply unit to supply the coloring liquid having a viscosity lower than that of the coloring liquid in the discharge period to the droplet discharge head.
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公开(公告)号：US20230021666A1
公开(公告)日：2023-01-26
申请号：US17936815
申请日：2022-09-29
Applicant: KYOCERA CORPORATION
Inventor： Takashi MIYAHARA , Daisuke HOZUMI , Atsushi ISHIHARA
Abstract: A liquid ejecting device includes a flow path member, an actuator, a pump, and a controller. The flow path member includes a flow path configured to direct flow of a pseudoplastic liquid through the flow path member. The actuator is configured to cause droplets to be ejected. The pump is configured to cause the liquid to flow sequentially through a supply reservoir, a plurality of supply manifolds, a plurality of supply flow paths, and a plurality of pressure chambers. The controller is configured to adjust a flow rate of the liquid to a prescribed target flow rate. The flow path has a flow path shape in which an average viscosity of the liquid in the plurality of supply flow paths is less than or equal to half an average viscosity of the liquid in the plurality of supply manifolds when the flow rate is equal to the target flow rate.
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公开(公告)号：US20200001606A1
公开(公告)日：2020-01-02
申请号：US16334787
申请日：2017-09-20
Applicant: KYOCERA Corporation
Inventor： Daisuke HOZUMI
Abstract: A liquid ejection head includes a plurality of pressurizing chambers connected to a plurality of ejection holes, a plurality of first individual flow paths connected to the plurality of pressurizing chambers, a plurality of second individual flow paths and a plurality of third individual flow paths, a first common flow path is connected in common to the plurality of first and plurality of second individual flow paths, and a second common flow path is connected in common to the plurality of third individual flow paths. The first and second individual flow paths are connected to the same pressurizing chamber, the first individual flow path is connected to the first common flow path in an opening end portion, compared to the second individual flow path. The first individual flow path is located opposite to a side where the ejection hole is open outward, compared to the second individual flow path.
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公开(公告)号：US20240109096A1
公开(公告)日：2024-04-04
申请号：US18540725
申请日：2023-12-14
Applicant: KYOCERA CORPORATION
Inventor： Daisuke HOZUMI , Ayumu MATSUMOTO
CPC classification number: B05C5/0208 , B05C11/00
Abstract: A coating device coats a coating region of a to-be-coated object having a convex curved surface. A coating device includes a head, an arm, and a controller. The head includes a nozzle surface. The arm holds the head. The controller controls movement of the head via the arm. A controller moves a head in a first direction along an end portion of a coating region in a posture in which a gap between a nozzle surface located on an end portion side of the coating region and a to-be-coated object is smaller than a gap between the nozzle surface located on a center side of the coating region and the to-be-coated object.
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